SPC560P60L3 datasheet(22/104 Pages) STMICROELECTRONICS

22 / 104 page

Introduction

SPC56xP54x, SPC56xP60x

22/104

Doc ID 18340 Rev 3

1.5.22

Deserial serial peripheral interface (DSPI)

The deserial serial peripheral interface (DSPI) module provides a synchronous serial

interface for communication between the SPC56xP54/60 MCU and external devices.

The DSPI modules provide these features:

●

Full duplex, synchronous transfers

●

Master or slave operation

●

Programmable master bit rates

●

Programmable clock polarity and phase

●

End-of-transmission interrupt flag

●

Programmable transfer baud rate

●

Programmable data frames from 4 to 16 bits

●

Up to 28 chip select lines available

–

8 each on DSPI_0 and DSPI_1

–

4 each on DSPI_2, DSPI_3, and DSPI_4

●

8 clock and transfer attributes registers

●

Chip select strobe available as alternate function on one of the chip select pins for

deglitching

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FIFOs for buffering up to 5 transfers on the transmit and receive side

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Queueing operation possible through use of the eDMA

●

General purpose I/O functionality on pins when not used for SPI

1.5.23

eTimer

Two eTimer modules are provided, each with six 16-bit general purpose up/down

timer/counter per module. The following features are implemented:

●

Individual channel capability

–

Input capture trigger

–

Output compare

–

Double buffer (to capture rising edge and falling edge)

–

Separate prescaler for each counter

–

Selectable clock source

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0% to 100% pulse measurement

–

Rotation direction flag (Quad decoder mode)

●

Maximum count rate

–

Equals peripheral clock/2 — for external event counting

–

Equals peripheral clock — for internal clock counting

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Cascadeable counters

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Programmable count modulo

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Quadrature decode capabilities

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Counters can share available input pins

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Count once or repeatedly

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Preloadable counters

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Pins available as GPIO when timer functionality not in use

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